Hi people, I just want to show you my own CDI system with advance timing programmed. The microcontroller is gradually advancing from 2000rpm to 6000rpm where it gets full advance (adjustable in real time from 0 to 33.5 degrees) so I can look for the best point with the trim while the engine is running. It works fine with 4.8V or 6V, 550mA it's enough (power consumption 220mA). Easy start and no kickback (retarded), good spark up to almost 30.000 rpm. Total weight is 5.8 oz
It's working fine on my converted Stihl 60cc, I'm going to test it on a G-23 soon.